<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
    <form action="https://www.sogou.com/web">
        <input type="text" name="query" value="赵凡" />
        <input type="submit" value="搜索" />
    </form>
</body>
</html>